So, I have a notebook with a Windows operating system pre-installed. The thing is the version installed is a Windows Vista Professional 32-bit. The CPU is a Core 2 Duo. The default memory is a mere 1GB but with an additional slot for expansion purposes. Now, I think why I'm saddled with 1GB. Why can't I upgrade the memory all the way to 4GB?
But wait, didn't they say you couldn't take advantage of the 4GB memory if your OS isn't a 64-bit? That's still true but if you don't mind the extra work, why not reformat your unit with a 64-bit version of Windows Vista?
Long story short, is it possible to use the product key of a 32-bit Windows you got on a 64-bit installer? Short answer, yes.
I had to make a call to the activation center and give them the number keys since the online activation seem to be having a problem but, hey, it worked! Granted, I had to find drivers for some of the devices but most of the 32-bit drivers worked fine. Fortunately, there is no issue with the NVidia driver for the graphics as it sometimes happens in some models. The only driver issue was about an ENE device which didn't hamper performance at all.
Will this action also work in Windows 7? I had the chance to find out that the answer is yes. It was a Core i5 Sandybridge laptop and it seems a shame not to use a 64-bit Windows. No problem with device drivers. Installed Windows 7 Home Premium 64-bit and then used the product key of a 32-bit version of Home Premium. It was a snap.
I imagine this is not the biggest secret in the world and I am not aware of any legalese that says you can't use 64-bit Windows with the product key you got from a 32-bit Windows. In fact, owners of full product versions of Windows 7 Home Premium, Professional and Ultimate will find both 32-bit and 64-bit DVDs available in the package. You only need the one product key provided and activates either versions. It's just that who knew it would work with the OEM versions?
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